CVE-2025-69084Public exploitNetwork attack vector

Script execution via unescaped sl_message parameter

Published Jan 6, 2026 · Updated Jan 6, 2026

Reflected XSS in GT3 Themes Photo Gallery 2.7.7.26 and earlier allows remote attackers to execute scripts via a crafted link. The updater’s gt3pg_updater.php decodes the sl_message query parameter with urldecode() and echoes it into an administrative page without output escaping. Exploitation requires a logged-in WordPress user with access to the plugin update or license page to follow the link, placing that user’s browser session and site-authorized actions at risk.

CVSS severity7.1
High
EPSS probability0.21%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Reflected XSS in GT3 Themes Photo Gallery 2.7.7.26 and earlier allows remote attackers to execute scripts via a crafted link. The updater’s gt3pg_updater.php decodes the sl_message query parameter with urldecode() and echoes it into an administrative page without output escaping. Exploitation requires a logged-in WordPress user with access to the plugin update or license page to follow the link, placing that user’s browser session and site-authorized actions at risk.

The record

CVE
CVE-2025-69084
Published
Jan 6, 2026
Updated
Jan 6, 2026
Vendor
GT3 Themes
Product
Photo Gallery - GT3 Image Gallery & Gutenberg Block Gallery
Classifications
CWE-79, CAPEC-591, T1189
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jan 6, 2026CVE publishedPublication date reported by the CVE source.
  2. Jan 6, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=n/a <=2.7.7.26

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

GT3 Themes · Photo Gallery - GT3 Image Gallery & Gutenberg Block Galleryversion=n/a <=2.7.7.26

Published CVSS scores

7.1PatchstackCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CAPEC-591Reflected XSS
T1189Drive-by Compromise

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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